feat: content steering demo page tab

[adrums86]

Description

Adds content steering information to the demo page.

Specific Changes proposed

Creating a new tab in the demo page that displays the current state of the content steering controller and content steering manifest object within the controller.

Requirements Checklist

• Feature implemented / Bug fixed
• If necessary, more likely in a feature request than a bug fix
  • Unit Tests updated or fixed
  • Docs/guides updated
  • Example created (starter template on JSBin)
• Reviewed by Two Core Contributors

[codecov]

Codecov Report

Merging #1425 (e88fdd0) into main (86d5327) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1425   +/-   ##
=======================================
  Coverage   85.75%   85.75%           
=======================================
  Files          42       42           
  Lines       10284    10284           
  Branches     2374     2374           
=======================================
  Hits         8819     8819           
  Misses       1465     1465           

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[wseymour15]

Looks great!